{"id":1179,"date":"2025-03-23T11:24:57","date_gmt":"2025-03-23T02:24:57","guid":{"rendered":"https:\/\/www.aqua-informatics.jp\/?p=1179"},"modified":"2025-04-07T11:05:18","modified_gmt":"2025-04-07T02:05:18","slug":"raid1","status":"publish","type":"post","link":"https:\/\/www.aqua-informatics.jp\/?p=1179","title":{"rendered":"RAID1"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">8TB\u306eSATA HDD\u30922\u53f0\u3001mdadm\u3092\u4f7f\u7528\u3057\u3066\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2RAID1\u3092\u69cb\u7bc9\u3001\u64ae\u308a\u305f\u3081\u305f\u308a\u3001\u9332\u308a\u305f\u3081\u305f\u5199\u771f\u3084\u30e0\u30fc\u30d3\u30fc\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u306b\u5229\u7528\u3057\u69d8\u3068\u8003\u3048\u3066\u3044\u308b\u3002\u5225\u9014\u30014TB\u30928\u53f0\u4f7f\u7528\u3057\u305fRAID5\u306e\u69cb\u7bc9\u3082\u4e88\u5b9a\u4e2d\u3002\u73fe\u5728\u4f7f\u7528\u3057\u3066\u3044\u308b10TB\u306820TB\u306e\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2RAID5\u306e\u4ee3\u66ff\u3092\u76ee\u6307\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4eca\u56de\u306f\u3001\u969c\u5bb3\u6642\u306e\u5bfe\u5fdc\u306e\u305f\u3081\u3001\u7269\u7406\u7684\u306aHDD\u306e\u53d6\u4ed8\u5834\u6240\u3068\u8a2d\u5b9a\u6642\u306e\u30d6\u30ed\u30c3\u30af\u30c7\u30d0\u30a4\u30b9\u306e\u540d\u524d\u3092\u7d10\u4ed8\u3051\u3059\u308b\u305f\u3081\u306b\u30b7\u30ea\u30a2\u30eb\u30ca\u30f3\u30d0\u30fc\u306e\u78ba\u8a8d\u65b9\u6cd5\u306e\u30e1\u30e2\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305a\u306f\u3058\u3081\u306b\u3001\u30d6\u30ed\u30c3\u30af\u30c7\u30d0\u30a4\u30b9\uff08\u30d6\u30ed\u30c3\u30af\u5358\u4f4d\u3067\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u51fa\u3059\u88c5\u7f6e\u985e\uff09\u3092\u78ba\u8a8d\u3059\u308b\u3002Ubuntu\u3067\u306fsnap\u30d1\u30c3\u30b1\u30fc\u30b8\u304c\u3001\u500b\u3005\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3054\u3068\u306b\u72ec\u81ea\u306e\u4eee\u60f3\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u74b0\u5883\uff08\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\uff09\u3092\u751f\u6210\u3057\u3066\u3044\u308b\u306e\u3067\u3001grep -v snap\u3067\u9664\u5916\u3057\u307e\u3059\u3002Snap\u30d1\u30c3\u30b1\u30fc\u30b8\u306f\u30eb\u30fc\u30d7\u30d0\u30c3\u30af\u30c7\u30d0\u30a4\u30b9\uff08\u30c7\u30d0\u30a4\u30b9\u540d\u304c loop\u3067\u59cb\u307e\u308b\u30c7\u30d0\u30a4\u30b9\uff09\u3092\u5229\u7528\u3057\u3001\/snap\/\u306b\u30de\u30a6\u30f3\u30c8\u3059\u308b\u305f\u3081\u3001grep -v loop\u3067\u3082\u69cb\u3044\u307e\u305b\u3093\u3002\u86c7\u8db3\u3067\u3059\u304c\u3001\u4eca\u56de\u306e\u3088\u3046\u306a\u78ba\u8a8d\u6642\u306b\u306f\u5927\u91cf\u306b\u30eb\u30fc\u30d7\u30d0\u30c3\u30af\u30c7\u30d0\u30a4\u30b9\u304c\u73fe\u308c\u4e0d\u4fbf\u306a\u306e\u3067\u3059\u304c\u3001snap\u30d1\u30c3\u30b1\u30fc\u30b8\u306e\u3053\u306e\u3088\u3046\u306a\u4ed5\u69d8\u306f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3068\u305d\u306e\u4f9d\u5b58\u95a2\u4fc2\u3092\u9694\u96e2\u3057\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u4ed6\u306e\u90e8\u5206\u3068\u306e\u7af6\u5408\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u5f79\u7acb\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\"><code>10:42 AM kimi@ryzen9-9900x:~\n$ lsblk | grep -v snap\nNAME        MAJ:MIN RM   SIZE RO TYPE  MOUNTPOINTS\nsda           8:0    0   7.3T  0 disk  \n\u2514\u2500md0         9:0    0   7.3T  0 raid1 \/mnt\/raid\nsdb           8:16   0   7.3T  0 disk  \n\u2514\u2500md0         9:0    0   7.3T  0 raid1 \/mnt\/raid\nnvme0n1     259:0    0 931.5G  0 disk  \n\u251c\u2500nvme0n1p1 259:1    0     1G  0 part  \/boot\/efi\n\u2514\u2500nvme0n1p2 259:2    0 930.5G  0 part  \/<\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">sda\u3068sdb\u304cmd0\u3092\u69cb\u6210\u3057\u3001\/mnt\/raid\u306b\u30de\u30a6\u30f3\u30c8\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u5224\u308a\u307e\u3057\u305f\u3002\u6b21\u306b\u3001udevadm\u30b3\u30de\u30f3\u30c9\u3067\u3001\u3053\u308c\u3089\u306e\u30c7\u30d0\u30a4\u30b9\u306e\u30b7\u30ea\u30a2\u30eb\u30ca\u30f3\u30d0\u30fc\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\"><code>10:17 AM kimi@ryzen9-9900x:~\n$ sudo udevadm info --query=all --name=\/dev\/sda | grep SERIAL\nE: ID_SERIAL=ST8000DM004-2U9188_ZR15F38E\nE: ID_SERIAL_SHORT=ZR15F38E\n10:17 AM kimi@ryzen9-9900x:~\n$ sudo udevadm info --query=all --name=\/dev\/sdb | grep SERIAL\nE: ID_SERIAL=ST8000DM004-2U9188_WSC2BQV7\nE: ID_SERIAL_SHORT=WSC2BQV7<\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u30b7\u30ea\u30a2\u30eb\u30ca\u30f3\u30d0\u30fc\u306fHDD\u306eSATA\u30b3\u30cd\u30af\u30bf\u3001\u96fb\u6e90\u30b3\u30cd\u30af\u30bf\u306e\u53cd\u5bfe\u5074\u306e\u9762\u306b\u8cbc\u308a\u4ed8\u3051\u3089\u308c\u3066\u3044\u308b\u30b7\u30fc\u30eb\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5\u4e0a\u3001\u969c\u5bb3\u6642\u306b\u4ea4\u63db\u3059\u3079\u304dHDD\u306e\u78ba\u8a8d\u304c\u53ef\u80fd\u3068\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u306a\u304a\u3001lsblk\u30b3\u30de\u30f3\u30c9\u3001smartctl\u30b3\u30de\u30f3\u30c9\u3067\u3082\u3053\u306e\u30b7\u30ea\u30a2\u30eb\u30ca\u30f3\u30d0\u30fc\u306e\u78ba\u8a8d\u306f\u53ef\u80fd\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\"><code>11:10 AM kimi@ryzen9-9900x:~\n$ lsblk \/dev\/sda -o NAME,MODEL,SERIAL\nNAME  MODEL              SERIAL\nsda   ST8000DM004-2U9188 ZR15F38E\n\u2514\u2500md0   <\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">S.M.A.R.T\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\u306f\u3001<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\"><code>11:12 AM kimi@ryzen9-9900x:~\n$ sudo smartctl -i \/dev\/sda\nsmartctl 7.4 2023-08-01 r5530 [x86_64-linux-6.11.0-19-generic] (local build)\nCopyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org\n\n=== START OF INFORMATION SECTION ===\nModel Family:     Seagate BarraCuda 3.5 (SMR)\nDevice Model:     ST8000DM004-2U9188\nSerial Number:    ZR15F38E\nLU WWN Device Id: 5 000c50 0e7c8c7ef\nFirmware Version: 0001\nUser Capacity:    8,001,563,222,016 bytes [8.00 TB]\nSector Sizes:     512 bytes logical, 4096 bytes physical\nRotation Rate:    5400 rpm\nForm Factor:      3.5 inches\nDevice is:        In smartctl database 7.3\/5528\nATA Version is:   ACS-3 T13\/2161-D revision 5\nSATA Version is:  SATA 3.1, 6.0 Gb\/s (current: 6.0 Gb\/s)\nLocal Time is:    Sun Mar 23 11:12:55 2025 JST\nSMART support is: Available - device has SMART capability.\nSMART support is: Enabled<\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u306a\u304a\u3001S.M.A.R.T\u306fsmartmontools\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\uff08Ubuntu 24.04LTS\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Model Family: Seagate BarraCuda 3.5 (SMR)\u3068\u3042\u308a\u307e\u3059\u304c\u3001\u3053\u3053\u3067Model\u540d\u306b\u73fe\u308c\u308bSMR\u306b\u3064\u3044\u3066\u3082\u89e3\u8aac\u3057\u3066\u304a\u304d\u307e\u3059\u3001\u306a\u304a\u30014TB\u306eRAID5\u306b\u306f\u4ee5\u4e0b\u306b\u8ff0\u3079\u308b\u7406\u7531\u304b\u3089CMR\u3092\u7528\u610f\u3057\u3066\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.aqua-informatics.jp\/?p=1179\/#CMR_Conventional_Magnetic_Recording\" >CMR (Conventional Magnetic Recording)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.aqua-informatics.jp\/?p=1179\/#SMR_Shingled_Magnetic_Recording\" >SMR (Shingled Magnetic Recording)<\/a><\/li><\/ul><\/nav><\/div>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"CMR_Conventional_Magnetic_Recording\"><\/span><strong>CMR (Conventional Magnetic Recording)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7279\u5fb4<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5404\u30c8\u30e9\u30c3\u30af\u304c\u72ec\u7acb\u3057\u3066\u66f8\u304d\u8fbc\u307e\u308c\u308b\u305f\u3081\u3001\u30e9\u30f3\u30c0\u30e0\u66f8\u304d\u8fbc\u307f\u306e\u6027\u80fd\u304c\u9ad8\u3044\u3002<\/li>\n\n\n\n<li>\u4e00\u822c\u7684\u306aHDD\uff08\u7279\u306b\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u5411\u3051\u3084NAS\u5411\u3051\uff09\u306b\u63a1\u7528\u3055\u308c\u3066\u3044\u308b\u3002<\/li>\n\n\n\n<li>RAID\u3084\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3001\u66f8\u304d\u8fbc\u307f\u304c\u591a\u3044\u7528\u9014\u306b\u9069\u3057\u3066\u3044\u308b\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"> <strong>\u30c7\u30e1\u30ea\u30c3\u30c8<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8a18\u9332\u5bc6\u5ea6\u306fSMR\u3088\u308a\u4f4e\u3044\u306e\u3067\u3001\u540c\u3058\u30b5\u30a4\u30ba\u306e\u30c7\u30a3\u30b9\u30af\u3067\u3082\u8a18\u61b6\u5bb9\u91cf\u304c\u5c0f\u3055\u304f\u306a\u308b\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"SMR_Shingled_Magnetic_Recording\"><\/span><strong>SMR (Shingled Magnetic Recording)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"> <strong>\u7279\u5fb4<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c8\u30e9\u30c3\u30af\u3092\u5c11\u3057\u305a\u3064\u91cd\u306d\u3066\uff08shingle = \u5c4b\u6839\u306e\u3088\u3046\u306b\uff09\u66f8\u304d\u8fbc\u3080\u3053\u3068\u3067\u3001\u3088\u308a\u591a\u304f\u306e\u30c7\u30fc\u30bf\u3092\u4fdd\u5b58\u3067\u304d\u308b\u3002<\/li>\n\n\n\n<li>\u8a18\u9332\u5bc6\u5ea6\u304c\u9ad8\u304f\u3001\u540c\u3058\u7269\u7406\u30b5\u30a4\u30ba\u306e\u30c7\u30a3\u30b9\u30af\u3067\u3088\u308a\u5927\u5bb9\u91cf\u5316\u304c\u53ef\u80fd\u3002<\/li>\n\n\n\n<li>\u4e3b\u306b\u30a2\u30fc\u30ab\u30a4\u30d6\u7528\u9014\u3084\u30b3\u30fc\u30eb\u30c9\u30b9\u30c8\u30ec\u30fc\u30b8\u5411\u3051\u306b\u4f7f\u308f\u308c\u308b\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"> <strong>\u30c7\u30e1\u30ea\u30c3\u30c8<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u66f8\u304d\u8fbc\u307f\u6642\u306b\u524d\u306e\u30c7\u30fc\u30bf\u3092\u4e0a\u66f8\u304d\u3057\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u3001\u30e9\u30f3\u30c0\u30e0\u66f8\u304d\u8fbc\u307f\u306e\u6027\u80fd\u304c\u8457\u3057\u304f\u4f4e\u3044\u3002<\/li>\n\n\n\n<li>RAID\u306e\u518d\u69cb\u7bc9\u3084\u983b\u7e41\u306a\u66f8\u304d\u63db\u3048\u304c\u767a\u751f\u3059\u308b\u7528\u9014\u306b\u306f\u4e0d\u5411\u304d\u3002<\/li>\n\n\n\n<li>\u4e00\u5ea6\u66f8\u304d\u8fbc\u3093\u3060\u30c7\u30fc\u30bf\u3092\u307e\u3068\u3081\u3066\u6d88\u3059\u52d5\u4f5c\uff08\u30ac\u30d9\u30fc\u30b8\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\uff09\u304c\u767a\u751f\u3059\u308b\u305f\u3081\u3001\u66f8\u304d\u8fbc\u307f\u306e\u9045\u5ef6\u304c\u5927\u304d\u304f\u306a\u308b\u3053\u3068\u304c\u3042\u308b\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u4eca\u56de\u306fRAID1\u3067\u57fa\u672c\u7684\u306b \u30b7\u30fc\u30b1\u30f3\u30b7\u30e3\u30eb\u66f8\u304d\u8fbc\u307f\u304c\u4e3b\u4f53\u306a\u306e\u3067<strong>\u3001<\/strong>SMR \u3067\u3082\u81f4\u547d\u7684\u306a\u554f\u984c\u306b\u306f\u306a\u308a\u306b\u304f\u3044 \u3068\u8003\u3048\u305f\u306e\u3068\u3001\u5358\u306a\u308b\u30c7\u30fc\u30bf\u4fdd\u7ba1\u7528\u9014\uff08\u66f8\u304d\u8fbc\u307f\u983b\u5ea6\u304c\u4f4e\u3044\uff09\u306e\u305f\u3081\u554f\u984c\u306a\u3044\u304b\u306a\uff1f\u3068\u601d\u3044\u305f\u3044\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uff1c\u8ffd\u8a18\uff1e<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b8b\u5ff5\u306a\u304c\u3089SMR\u306eHDD\u306f\u304a\u3059\u3059\u3081\u3057\u306a\u3044\u3002\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u306e\u305f\u3081\u3060\u3063\u305f\u306e\u30676TB\u307b\u3069\u306e\u30c7\u30fc\u30bf\u3092\u8ee2\u9001\u3057\u305f\u304c\u3001\u6700\u521d\u306e\u3046\u3061\u306f1000BASE-T\u306e\u7406\u8ad6\u5024\u306b\u8fd1\u3044115\u301c120MB\u306e\u901f\u5ea6\u304c\u51fa\u308b\u304c\u3001\u76f4\u3050\u306b18MB\u7a0b\u5ea6\u306b\u4f4e\u4e0b\u3057\u3066\u3057\u307e\u3044\u307e\u3057\u305f\u3002\u3053\u308c\u306f\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u6ea2\u308c\u305f\u305f\u3081\u3068\u601d\u308f\u308c\u307e\u3059\u3002\u3061\u306a\u307f\u306b\u3001PCIe5.0\u306eNVMe\u306eM.2\u3078\u306e\u8ee2\u9001\u3067\u306f\u3053\u306e\u69d8\u306a\u8ee2\u9001\u901f\u5ea6\u306e\u8457\u3057\u3044\u4f4e\u4e0b\u306f\u8a8d\u3081\u3089\u308c\u306a\u304b\u3063\u305f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305f\u3001\u5f8c\u65e5\u3001CMR\u3067RAID5\u3092\u69cb\u7bc9\u3059\u308b\u4e88\u5b9a\u306a\u306e\u3067\u3001RAID1\u3068RAID5\u306e\u9055\u3044\u306f\u3042\u308b\u304c\u3001CMR\u3068SMR\u306e\u9055\u3044\u304c\u78ba\u8a8d\u3067\u304d\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>8TB\u306eSATA HDD\u30922\u53f0\u3001mdadm\u3092\u4f7f\u7528\u3057\u3066\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2RAID1\u3092\u69cb\u7bc9\u3001\u64ae\u308a\u305f\u3081\u305f\u308a\u3001\u9332\u308a\u305f\u3081\u305f\u5199\u771f\u3084\u30e0\u30fc\u30d3\u30fc\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u306b\u5229\u7528\u3057\u69d8\u3068\u8003\u3048\u3066\u3044\u308b\u3002\u5225\u9014\u30014TB\u30928\u53f0\u4f7f\u7528\u3057\u305fRAID5\u306e\u69cb\u7bc9\u3082\u4e88\u5b9a\u4e2d\u3002\u73fe\u5728\u4f7f\u7528 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